Lifting device



Aug. 14, 1945. w. s, HICKENLOOPER 2,

LIFTING DEVICE Filed Feb. 5, 1945 INVENTOR.

W41. rm 5. warm/4001 5,?

Patented Aug. 14 1945 UNITED STATES PATENT OFFICE v LIFTING DEVICE Walter S. Hickenlooper, Long Beach, Calif. Application February 5, 1945, Serial No. 576,213

3 Claims.

This invention relates to a lifting device and has relation more particularly to a device of this kind especially adapted for use in connection with flanged metal vent ducts and similar equipment used in ship building and the like.

It is primarily an object of the invention to provide a device of this kind which can be readily applied to the flanged equipment and effectively locked in place.

It is also an object of the invention to provide a device of this kind including a member for detachable engagement with the flange of a vent duct or the like together with a key coacting with the applied member and with the duct or the like for holding the member from slipping ofi the load.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved lifting device whereby certain important advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawing, wherein:

Figure 1 is a view in perspective of a lifting device constructed in accordance with an embodiment of my invention;

Figure 2 is a view in top plan of the device as illustrated in Figure 1 in applied position;

Figure 3 is a detailed sectional view taken substantially on the line 3-3 of Figure 2;

Figure 4 is a transverse sectional view taken transversely through the lower portion of the key, as herein comprised; and

Figure 5 is a view in elevation of the key comprised herein, unapplied.

As illustrated in the accompanying drawing, the device is of a type to be employed in connection with a flanged metal vent duct D such as employed in connection with ships, also it is to be understood that the device as herein embodied may be employed with other types of flanged equipment.

As herein embodied the device comprises two separate elements M and K, the member A constituting a work engaging member and the element K constituting a holding or looking key.

As herein disclosed the member A comprises two elongated perpendicularly related flat arms I having adjacent extremities rigidly connected and each of the arms I has its outer marginal portion continued byan inwardly disposed underlying flange 2 spaced from the arm I providing a channel to straddle or receive the outstanding marginal flange 3 of the duct Dor similar equipment. The inner end portion of the flange 2 is interrupted or broken away, as at 4, to faciliare of material length to assure effective engagement with the duct D or the like.

Extending from substantially the central portion of one arm to the central portion of the second arm is an upstanding lifting pad 5 providing an open space 6 in advance of the pad 5 and between the portions of the arms I forward of the pad. The central portion of the pad 5 is provided therethrough with an opening 1.

The key as herein disclosed comprises an elongated body having one end portion thereof for approximately one-half the length of the key angular in cross section, as at 8, so that said portion 8, when the key is applied, will snugly fit within the inner meeting angle of the corner of the duct D or the like with which the device is employed.

The opposite end portion 9 of the key K is flat and is adapted to have close contact with the outer face of the pad 5. When the key is applied the portion 8 is inserted through the space 6 and within the duct D or the like and said key is inserted to an extent to bring the opening H] in the flat portion 9 of the key into register with the opening 1. of the pad 5 whereupon a holding pin I l for a shackle I2 is inserted through the registering openings 1 and I0 whereby the key K is held in applied position and in a manner whereby contact of the portion 8 of the key K with the duct D or the like from within will hold the member M from slipping 01f and particularly during the period the load is being lifted. It is believed to be obvious that the shackle l2 can be readily engaged by the usual grapple hook or the like.

From the foregoing description it is believed to be obvious that my invention is susceptible of some change and modification without departmg from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

I claim:

1. A lifting device for a vent duct or the like having an outstanding outwardly disposed marginal flange comprising angularly related inward- 1y facing channel members to straddle the flange of the duct or the like at a corner portion thereof, an upstanding lifting pad secured to the arms at points spaced outwardly from the junction of said arms and providing a space between the pad and the portions of the arms in advance of the pad, a holding key insertible through such space to engage from within the adjacent portion space between the pad and the portions of the arms in advance of the pad, a holding key insertible through such space to engage from within the adjacent portion of the duct or the like, said pad having an opening therethrough, the upper portion of the key having an opening to register with the opening of the pad when the key is in working position and an element disposed through the registering opening to releasably hold the key to the pad. I

3. A lifting device for a vent duct or the like having anoutstanding outwardly disposed marginal flange comprising angularly related inof the duct or the like and means for releasably.

securing the key to the pad.

2. A lifting device for a vent duct or the like having an outstanding outwardly disposed marginal flange comprising angularly related inwardly facing channel members to straddle the flange of the duct or the like at a corner portion thereof, an upstanding lifting pad secured to the arms at points spaced'outwardly from the junction of said arms and providing a wardly facing channel members to straddle the flange of the duct or the like at a corner portion thereof, an upstanding lifting pad secured to the arms at points spaced outwardly from the junction of said arms and providing a space between the pad and the portions of the arms in advance of the-pad, a holding key insertible through such space to engage from within the adjacent portion of the duct or the like and means for releasably securing the key to the pad, the lower or inserted end'portion of the key being angular in cross section to substantially conform to the coacting portion of the duct or the like.

WALTER S. HICKENLOOPER. 

